Amaroucium colelloides Herdman, 1886 accepted as Aplidium colelloides (Herdman, 1886) (original description)
Amaroucium globosum Herdman, 1886 accepted as Aplidium globosum (Herdman, 1886) (original description)
Amaroucium irregulare Herdman, 1886 accepted as Aplidium irregulare (Herdman, 1886) (original description)
Amaroucium laevigatum Herdman, 1886 accepted as Aplidium fuegiense (Cunningham, 1871) (original description)
Amaroucium pallidulum Herdman, 1886 accepted as Aplidium irregulare (Herdman, 1886) (original description)
Amaroucium recumbens Herdman, 1886 accepted as Aplidium recumbens (Herdman, 1886) (original description)
Amaroucium variabile Herdman, 1886 accepted as Aplidium variabile (Herdman, 1886) (original description)
Aplidium crassum Herdman, 1886 accepted as Clavelina picta (Verrill, 1900) (original description)
Aplidium despectum Herdman, 1886 accepted as Aplidium pallidum (Verrill, 1871) (original description)
Aplidium fumigatum Herdman, 1886 (original description)
Aplidium fuscum Herdman, 1886 accepted as Aplidium undulatum Monniot F. & Gaill, 1978 (original description)
Aplidium leucophaeum Herdman, 1886 accepted as Aplidium undulatum Monniot F. & Gaill, 1978 (original description)
Aplidium spongiforme (Herdman, 1886) (basis of record)
Atopogaster Herdman, 1886 accepted as Synoicum Phipps, 1774 (original description)
Atopogaster aurantiaca Herdman, 1886 (original description)
Atopogaster elongata Herdman, 1886 accepted as Aplidium fuegiense (Cunningham, 1871) (original description)
Atopogaster gigantea Herdman, 1886 accepted as Aplidium fuegiense (Cunningham, 1871) (original description)
Botrylloides fulgurale Herdman, 1886 accepted as Botrylloides leachii (Savigny, 1816) (original description)
Botrylloides nigrum Herdman, 1886 accepted as Botrylloides niger Herdman, 1886 (original description)
Botrylloides perspicuum Herdman, 1886 accepted as Botrylloides perspicuus (Herdman, 1886) (original description)
Botrylloides tyreum Herdman, 1886 accepted as Botrylloides tyreus Herdman, 1886 (original description)
Chorizocormus Herdman, 1886 accepted as Polyzoa Lesson, 1831 (original description)
Chorizocormus reticulatus Herdman, 1886 accepted as Polyzoa reticulata (Herdman, 1886) (original description)
Ciona aspera Herdman, 1886 accepted as Ciona savignyi Herdman, 1882 (original description)
Coelocormidae Herdman, 1886 accepted as Didemnidae Giard, 1872 (original description)
Coelocormus Herdman, 1886 (original description)
Coelocormus huxleyi Herdman, 1886 (original description)
Colella Herdman, 1886 (original description)
Colella concreta Herdman, 1886 accepted as Distaplia concreta (Herdman, 1886) (original description)
Colella elongata Herdman, 1886 accepted as Eudistoma elongatum (Herdman, 1886) (original description)
Colella gaimardi Herdman, 1886 accepted as Sycozoa gaimardi (Herdman, 1886) (original description)
Colella murrayi Herdman, 1886 accepted as Sycozoa murrayi (Herdman, 1886) (original description)
Colella pedunculata Herdman, 1886 accepted as Sycozoa sigillinoides Lesson, 1830 (original description)
Colella pulchra Herdman, 1886 accepted as Sycozoa pulchra (Herdman, 1886) (original description)
Colella quoyi Herdman, 1886 accepted as Sycozoa sigillinoides Lesson, 1830 (original description)
Colella ramulosa Herdman, 1886 accepted as Sycozoa sigillinoides Lesson, 1830 (original description)
Colella thomsoni Herdman, 1886 accepted as Nephtheis fascicularis (Drasche, 1882) (original description)
Cystodytes draschei Herdman, 1886 accepted as Cystodytes dellachiajei (Della Valle, 1877) accepted as Cystodytes dellechiajei (Della Valle, 1877) (original description)
Cystodytes draschii Herdman, 1886 accepted as Cystodytes dellachiajei (Della Valle, 1877) accepted as Cystodytes dellechiajei (Della Valle, 1877) (original description)
Cystodytes philippinensis Herdman, 1886 (original description)
Didemnum aurantiacum Herdman, 1886 (original description)
Didemnum neglectum Herdman, 1886 (original description)
Didemnum savignii Herdman, 1886 accepted as Trididemnum savignii (Herdman, 1886) (original description)
Didemnum savignyi Herdman, 1886 accepted as Trididemnum savignii (Herdman, 1886) (original description)
Didemnum thomsoni Herdman, 1886 (original description)
Diplosoma macdonaldi Herdman, 1886 accepted as Diplosoma listerianum (Milne Edwards, 1841) (original description)
Diplosomoides Herdman, 1886 accepted as Didemnum Savigny, 1816 (original description)
Diplosomoides molle Herdman, 1886 accepted as Didemnum molle (Herdman, 1886) (original description)
Distaplia ignota Herdman, 1886 accepted as Distaplia cylindrica (Lesson, 1830) (original description)
Distaplia ignotus Herdman, 1886 accepted as Distaplia cylindrica (Lesson, 1830) (original description)
Distaplia vallii Herdman, 1886 (original description)
Goodsiria pedunculata Herdman, 1886 accepted as Polyzoa opuntia Lesson, 1830 (original description)
Goodsiria placenta Herdman, 1886 accepted as Polyandrocarpa placenta (Herdman, 1886) (original description)
Leptoclinum annectens Herdman, 1886 accepted as Didemnum candidum Savigny, 1816 (original description)
Leptoclinum carpenteri Herdman, 1886 accepted as Didemnum carpenteri (Herdman, 1886) (original description)
Leptoclinum edwardsi Herdman, 1886 accepted as Didemnum edwardsi (Herdman, 1886) (original description)
Leptoclinum grande Herdman, 1886 accepted as Didemnum grande (Herdman, 1886) (original description)
Leptoclinum japonicum Herdman, 1886 accepted as Didemnum japonicum (Herdman, 1886) (original description)
Leptoclinum jeffreysi Herdman, 1886 accepted as Didemnum jeffreysi (Herdman, 1886) (original description)
Leptoclinum luteolum Verrill, 1871 accepted as Didemnum albidum (Verrill, 1871) (additional source)
Leptoclinum moseleyi Herdman, 1886 accepted as Didemnum moseleyi (Herdman, 1886) (original description)
Leptoclinum neglectum Herdman, 1886 accepted as Didemnum neglectum Herdman, 1886 (original description)
Leptoclinum propinquum Herdman, 1886 accepted as Trididemnum propinquum (Herdman, 1886) (original description)
Leptoclinum rubicundum Herdman, 1886 accepted as Polysyncraton chondrilla (Michaelsen, 1924) (original description)
Leptoclinum speciosum Herdman, 1886 accepted as Didemnum speciosum (Herdman, 1886) (original description)
Leptoclinum subflavum Herdman, 1886 accepted as Didemnum subflavum (Herdman, 1886) (original description)
Leptoclinum tenue Herdman, 1886 accepted as Didemnum tenue (Herdman, 1886) (original description)
Leptoclinum tonga Herdman, 1886 accepted as Didemnum tonga (Herdman, 1886) (original description)
Molgula carpenteri Herdman, 1886 accepted as Microcosmus glacialis (Sars, 1859) (original description)
Morchellioides Herdman, 1886 (original description)
Morchellium giardi Herdman, 1886 (original description)
Morchelloides Herdman, 1886 accepted as Morchellioides Herdman, 1886 (original description)
Morchelloides Herdman, 1886 accepted as Morchellioides Herdman, 1886 (additional source)
Morchelloides affinis Herdman, 1886 accepted as Synoicum giardi (Herdman, 1886) accepted as Morchellium giardi Herdman, 1886 (original description)
Pharyngodictyon Herdman, 1886 (original description)
Pharyngodictyon mirabile Herdman, 1886 (original description)
Polycarpa aspera (Herdman, 1886) (original description)
Polycarpa bassi Herdman, 1886 accepted as Polycarpa obscura Heller, 1878 (original description)
Polyclinum fungosum Herdman, 1886 (original description)
Polyclinum incertum Herdman, 1886 accepted as Aplidium fuegiense (Cunningham, 1871) (original description)
Polyclinum molle Herdman, 1886 accepted as Synoicum molle (Herdman, 1886) (original description)
Polyclinum pyriformis Herdman, 1886 accepted as Aplidiopsis pyriformis (Herdman, 1886) (original description)
Psammaplidium Herdman, 1886 accepted as Aplidium Savigny, 1816 (original description)
Psammaplidium effrenatum Herdman, 1886 accepted as Aplidium effrenatum (Herdman, 1886) (original description)
Psammaplidium exiguum Herdman, 1886 accepted as Aplidium exiguum (Herdman, 1886) (original description)
Psammaplidium ovatum Herdman, 1886 accepted as Eudistoma ovatum (Herdman, 1886) (original description)
Psammaplidium pyriforme Herdman, 1886 accepted as Eudistoma pyriforme (Herdman) (original description)
Psammaplidium retiforme Herdman, 1886 accepted as Aplidium retiforme (Herdman, 1886) (original description)
Psammaplidium spongiforme Herdman, 1886 accepted as Aplidium spongiforme (Herdman, 1886) (original description)
Sidnyum pallidum Herdman, 1886 accepted as Aplidium challengeri Brunetti, 2007 (original description)
Styela pusilla Herdman, 1886 (original description)
Symplegma Herdman, 1886 (original description)
Symplegma viride Herdman, 1886 (original description)
Synstyela incrustans Herdman, 1886 accepted as Alloeocarpa incrustans (Herdman, 1886) (original description)
Tylobranchion Herdman, 1886 (original description)
Tylobranchion speciosum Herdman, 1886 (original description)

Brazil Northeast for Diplosoma macdonaldi Herdman, 1886 
Cape of Good Hope for Leptoclinum edwardsi Herdman, 1886 
Kerguelen Exclusive Economic Zone for Leptoclinum rubicundum Herdman, 1886 
Morocco for Leptoclinum jeffreysi Herdman, 1886 
New Guinea for Diplosomoides molle Herdman, 1886